Originally Posted By: tfabris
That's a good idea. Though I don't have to jump through the hoops quite that badly to test it, I can just do it at the wall jack and in the closet. Skip the two switches by plugging direct.
Well, what about the ‘known good’ cable parameter?

If the in-wall cabling has packet loss issues or some other problem, the Mac may be de-prioritizing Ethernet or perhaps even ignoring it.

Besides, don’t you want to own a full length 100 meter certified Ethernet cable? CAT 5E minimum smile

I might mention that a cable manufacturer can print whatever they want on the cable jacket. The printing doesn’t necessarily mean it meets the specs (or any specs). Lots of maybe, or maybe not, cables on the market.

Same goes for the wall jacks.

I also have seen more than a few where the cable termination at the wall jack was sub-standard, loose, corroded, or just plain flakey. Not to mention cables mis-wired at the jack, wrong pin color coding, etc.